Matrix.Cell() gives me na error

[p.serek]

Hello everyone,

I've got a question about my code snippet. It's just copied from developer reference:

Dim oTG As TransientGeometry
oTG = ThisApplication.TransientGeometry
Dim dPi As Double
dPi = Atan(1) * 4
    
' Define the origin point.
Dim oOrigin As Point
oOrigin = oTG.CreatePoint(10, 5, 0)
    
' Define the axis vectors.  Pi/4 is 45 degrees in radians.
Dim oXAxis As UnitVector
Dim oYAxis As UnitVector
Dim oZAxis As UnitVector
oXAxis = oTG.CreateUnitVector(Cos(dPi / 4), Sin(dPi / 4), 0)
oYAxis = oTG.CreateUnitVector(-Cos(dPi / 4), Sin(dPi / 4), 0)
oZAxis = oTG.CreateUnitVector(0, 0, 1)
    
' Create the matrix and define the desired coordinate system.
Dim oMatrix As Matrix
oMatrix = oTG.CreateMatrix
oMatrix.SetCoordinateSystem(oOrigin, oXAxis.AsVector, oYAxis.AsVector, oZAxis.AsVector)

Dim dd = oMatrix.Cell(0, 0)

But when I call Matrix.Cell(0, 0) I get an error:

Same thing when I call this code by C#. It doesn't work in Inv 2022 and 2023 (other not tested yet).

Am I doing something wrong or is there a bug regarding the Cell property of Matrix?

I've read documentation and it says:

Matrix.Cell( Row As Long, Col As Long ) As Double

So it looks like my code is correct.

Please help.

Regards,

Przemek

[JMGunnar]

Check Matrix 

Best Regards Johan @p.serek 

Dim dCells(15) As Double
		oMatrix.GetMatrixData(dCells)

		Dim Pos = ThisDoc.Geometry.Matrix(oMatrix.Cell(1, 1), oMatrix.Cell(1, 2), oMatrix.Cell(1, 3), oMatrix.Cell(1, 4),
		oMatrix.Cell(2, 1), oMatrix.Cell(2, 2), oMatrix.Cell(2, 3), oMatrix.Cell(2, 4),
		oMatrix.Cell(3, 1), oMatrix.Cell(3, 2), oMatrix.Cell(3, 3), oMatrix.Cell(3, 4),
		oMatrix.Cell(4, 1), oMatrix.Cell(4, 2), oMatrix.Cell(4, 3), oMatrix.Cell(4, 4))

[Dev_rim · Accepted solution]

Hi Przemek,
Cells indexes starts from 1, not 0. So first rows index will be 1 and the firs columns index will be 1.
Changing last line like this:
Dim dd = oMatrix.Cell(1, 1)
Will be enough probably.

Best Regards
Devrim

[p.serek]

Hi Devrim,

That helped, thanks a lot! I didn't think about it...

Regards,
Przemek